html,body{
  line-height: 1;
  font-weight: 200;
  font-family: 'pingFan SC', 'STHeitiSC-Light','Helvetica-Light',Arial, Helvetica, sans-serif;
}
.cleafix{
  display:inline-block;
  &:after{
    display: block;
    content: ".";
    height: 0;
    line-height: 0;
    clear: both;
    visibility: hidden;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.5), (min-device-pixel-ratio: 1.5) {
  .border-1px::after {
    -webkit-transform: scaleY(0.7);
    transform: scaleY(0.7);
  }
}

@media (-webkit-min-device-pixel-ratio: 2), (min-device-pixel-ratio: 2) {
  .border-1px::after {
    -webkit-transform: scaleY(0.5);
    transform: scaleY(0.5); 
  }
}
